Source : Webster's Revised Unabridged Dictionary (1913)

Copeman \Cope"man\, n. [D. koopman, fr. koopen to buy. See
   {Cope}, v. i. {Chapman}.]
   A chapman; a dealer; a merchant. [Obs.]

         He would have sold his part of paradise For ready
         money, had he met a copeman.             --B. Jonson.